Respuesta:
a)
[tex]\frac{5}{18}+\frac{7}{25}+\frac{11}{45} \\\\= \frac{125+126+110}{450} \\\\= \frac{361}{450}[/tex]
b) Unidad (total km) - fracción que ha recorrido
[tex]1-\frac{361}{450} \\\\=\frac{450-361}{450}\\\\=\frac{89}{450}[/tex]
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Respuesta:
a)
[tex]\frac{5}{18}+\frac{7}{25}+\frac{11}{45} \\\\= \frac{125+126+110}{450} \\\\= \frac{361}{450}[/tex]
b) Unidad (total km) - fracción que ha recorrido
[tex]1-\frac{361}{450} \\\\=\frac{450-361}{450}\\\\=\frac{89}{450}[/tex]